Ball-cock



(No Model.)-

W. J. CAI-IILL.

BALL 600K.

Patented Deo. 31, 1889.

. To all whom, t may concern:

UNITED STATES PATENT OFFICE.

IVIIJLIAM J. CAHILL, OF PITTSFIELD, MASSACHUSETTS.

BALL-COCK.

SPECIFICATION forming part of Letters Eatent No. 418,162, dated December31, 1889.

-- Application filed October 2, 1889,

Serial No. 325,747. (No model.)

Be it known that I, IVILLIAM J. CAHILL, a citizen of the United States,residing at Pittsfield, in the county of Berkshire and State ofMassachusetts, have invented certain new and useful Improvements inBall-Cocks; and I do hereby declare the following to be a full, clear,:and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to`certain improvements in ball-cocks, ashereinafter set forth.

In the accompanying drawings, Figure 1 represents a side elevation, andFig. 2 a longitudinal section on the line a a of Fig. 1, illustrating myimprovements. Fig. 8 represents a modified form of float-rod.

'Where the pressure of the water-supply is great, some inconvenience andannoyance are experienced, owing to whistling noises in the pipes duringthe iillin g of the tank or cistern. Difticulty has, moreover, beenexperienced in completely shutting off the water-supply at the propertime when it is at high pressure.

The object of my invention is to remedy such defects, to prevent theleaking of the tank-supply cock, and to cause the automatic complete andnoiseless closure of the supplypipe.

1 represents the cock, which is formed in sections to facilitateexamination, cleaning, placing` in and removal from position, dac.

2 represents a threaded nut, which is loose upon the nozzle 3 of thecock and removably connects th e sam e and the eXteriorily-th readedpipe-joint e. Vithin this latter is contained a ball-valve 5, attachedto the inner end of a rod or slide 6, contained within andreciprocating, as hereinafter explained, within the pipe-section 7,whichis connected by suitable means, as by'a pipe 8, with the main. The rearend of the rod or slide 6 is vertically slotted, as at 9, to receive alug or fiange 10 on the inner end of a joint or coupling 11, to whichthe float-rod 12 is attached. This joint Il is pivotally journaled at 13between iianges or ears le on the pipe-section 7. It will thus beapparent that as the float-rod 12 rises and falls it willcorrespondingly rock said joint or coupling 1l upon its pivot, and thusreciprocate the rod or slide 6 either forwardly or rearwardly within thepipe-section 7. As the level of the Water within the tank decreases, theiioatl 5 and the outer end of the float-rod 12 descend and draw theslide or rod 6 and the thereto-connected ball-valvel 5 rearwardly asuitlcient distance to permit of water passing from the main to andthroughthe nozzle 3 to the tank. Asl the tank fills, the float andfloat-rod rise and cause the projection inward of the slide or rod 6,which, as it passes inward, forces the ball-valve against the front endof the pipe section or joint 4 to close the same, the pressure of waterwithin the pipe assisting in maintaining said ball-valve in closedposition, and thereby preventing water leaking therethrough, thecircular form of the ball-valve insuring an effective packing of thepipe and preventing the adherence thereto of foreign matter, as dirt ormud, to impede the closure of said valve against its seat, as, the waterflowing entirely around and ovei` the same, it is constantly kept clean.

In order to assist the ioat and float-rod in their reciprocal movementsandinsure the operation thereof at the proper times, I Iconstruct theiioat-rod either in the form of a tube 12 or else of dual form, as shownat 16. Vithin this tube, or between the twopart rod 16, as the case maybe, I place a ballweight 17, which will operate by gravity, as will bereadily understood upon reference to the drawings herewith, to assist inalternately lowering or raising the outer end of the iioatrod. Thisweight insures the uniform and positive automaiic action of thefloat-rod and parts connected therewith and insures the operation of thefloat at all proper times, assisting, as it does, the gravity action ofthe fioat as the level of the Water in the tank decreases, and also, byits tendency to roll back as the float is raised by the increase in thelevel of the water in the tank while filling, assisting in the raising-of said iioat. This ball-weight furthermore overcomes any tendencythere may be, by reason of the binding of the reciprocating parts, to afailure to properly operate.

The float-rod may be connected with the joint 11 in any suitable way, asby a threaded connection, as shown, or by a screw, bolt, or otherdeviceconuectingthe two parts together.

IOO

By my construction the ball-valve remains in retracted positionuntill/the tank is full. That result having been reached, the ballweightautomatically rolls to its foremost p0- sition and causes the projectionto its foremost position of the slide or rod 6, thereby 'forcing theball-Valve to its seat and immef `and pressure of yWater Within thecockv when ,the valve is closed will be to' press the ball closely andlirmly upon and Within its seat, so as to completely close thetankfsupply `opening to the nozzle.

What I claim isl.v A .ball-cock having a suitable nozzle andwater-supply connection, al ball-valve contained Within the co,ck,.alrod o r :slide connected with said ball-valve and adapted to reciprocatewithin the cock torespectively project said ball-valve into closed`position Within its seat and retract the same to open position, afloat, a rod or arm connecting said float and slide, and a Weightloosely supported upon said float rod or arm for the purpose ofassisting the loat and parts connected there- With in their `reciprocalmovements, substantially as and for the purposes set forth.

2. A ball-cock consisting of a sectional pipe, a nozzle, and aWater-main connection, a ballvalve contained Within said pipe andadapted to reciprocate therein, a float, devices, as rods, connectingsaid lfloat and ball-valve to secure t-he reciprocation of the latter,and a Weight having loose bearing upon thelioat-rod, substantially asand for the purposes set forth.

In testimony whereof I afi-lx my signature, in the presence of twoWitnesses, this Llthday of p March, 1889.

. WILLIAMJ. cAI-IILL.

